
#left {
    float: left;
    width: 250px;
    height: 100%;
    background: #eaeaea;
    border-right: 1px solid #d1d2d4 ;
    -webkit-box-shadow: 0px 1px 3px #d1d2d4;
    -moz-box-shadow: 0px 1px 3px  #d1d2d4;
    box-shadow: 0px 1px 3px  #d1d2d4;
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -ms-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
}

#left div.title {
    line-height: 45px;
    text-align: center;
    background: rgba(1,159,222,.6);
    color: #fafafa;
    font-size: 18px;
}

#left ul.parent_ul {
    margin-left: 24px;
}

#left ul.parent_ul li {
    position: relative;
    cursor: pointer;
    font-size: 16px;
}

#left ul.parent_ul li span {
    display: block;
    padding-left: 30px;
    line-height: 45px;
    position: relative;
    right: 0px;
    width: -webkit-calc(100% + 24px);
    width: -moz-calc(100% + 24px);
    width: calc(100% + 24px);
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -ms-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    border-color: rgb(1,159,222);
    background: rgba(1,159,222,0.8);
    letter-spacing: 1px;
}

#left ul.parent_ul li span:after {
    position: absolute;
    content: '';
    top: 100%;
    right: 0px;
    border-style: solid;
    border-width: 0em 0em 8px 24px;
    border-color: transparent;
    border-left-color: inherit;
    width: 0;
    height: 0;
}

#left ul.parent_ul li span:hover {
    color: #fff;
    opacity: .8;
}

#left ul.parent_ul li span:hover i ,
#left ul.parent_ul li span a.active ,
#left ul.parent_ul li span i + a.active {
    color: #fff;
    font-weight: 600;
}


#left ul.parent_ul li span i {
    position: absolute;
    top: 0px;
    left: 0px;
    color: #f0f0f0;
    font-size: 20px;
}

#left ul.parent_ul li span  a {
    color: #e9e9e9;
    display: block;
}

#left  ul.child_ul {
    margin: 4px 0px;
    box-shadow: 0px 0px 2px #d1d2d4;
}

#left  ul.child_ul li a {
    border-top: 1px solid #eaeaea;
    background: #fafafa;
    font-size: 14px;
    position: relative;
    width: 100%;
    overflow: hidden;
    color: #555;
    display: block;
    padding-left: 30px;
    line-height: 45px;
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -ms-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
}

#left  ul.child_ul li a:hover,
#left  ul.child_ul li a.active {
    color: #019fde;
}

#left  ul.child_ul li a:after {
    border: none;
}

#left  ul.child_ul li a:before {
    content: "";
    display: block;
    position: absolute;
    left: 13px;
    top: 50%;
    bottom: 50%;
    width: 4px;
    background: #019fde;
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -ms-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
}

#left  ul.child_ul li a:hover::before,
#left  ul.child_ul li a.active::before {
    top: 8px;
    bottom: 8px;
}
